import { LogEvent } from "../../core/LogEvent.js";
import type { AppenderConfiguration, PartialAppenderConfiguration } from "../interfaces/AppenderConfiguration.js";
export interface AppenderOptions {
    name: string;
    defaultLayout?: string;
}
export interface BaseAppenderMethods {
    write(loggingEvent: LogEvent): any;
    build?(): any;
    reopen?(): any;
    shutdown?(): Promise<any> | any | void;
}
/**
 * ## BaseAppender
 *
 * `@tsed/logger` can load appenders from outside the core appenders. The type config value is used as a require path if no matching appender can be found. For example, the following configuration will create an appender with decorators:
 *
 * ```typescript
 * // consoleAppender.ts
 * import {Appender, BaseAppender, LogEvent} from "@tsed/logger";
 * const consoleLog = console.log.bind(console);
 *
 * @Appender({name: "console2"})
 * export class ConsoleAppender extends BaseAppender {
 *   write(loggingEvent: LogEvent) {
 *       consoleLog(this.layout(loggingEvent, this.config.timezoneOffset));
 *   }
 * }
 * ```
 *
 * This appender can be use like this:
 *
 * ```typescript
 * import {Logger} from "@tsed/logger";
 * import "./consoleAppender.ts"
 *
 * const logger = new Logger("loggerName");
 *
 * logger.appenders
 *   .set("console-log", {
 *       type: "console2", level: ["debug", "info", "trace"]
 *   });
 * ```
 *
 */
export declare abstract class BaseAppender<Opts = any> implements BaseAppenderMethods {
    #private;
    readonly config: AppenderConfiguration<Opts>;
    [key: string]: any;
    constructor(config: AppenderConfiguration<Opts>);
    get appenderOptions(): AppenderOptions;
    configure(config: PartialAppenderConfiguration): this;
    /**
     *
     * @param args
     */
    layout(...args: any[]): string;
    abstract write(loggingEvent: LogEvent): any;
}